Cybersecurity experts warn that a recent cyberattack on French supermarket freezers highlights vulnerabilities in U.S. critical infrastructure, suggesting hackers may already have access to essential systems.
Cybersecurity experts are sounding alarms about the potential vulnerabilities in American critical infrastructure following a recent cyberattack on French supermarket freezers. This incident, which resulted in millions of dollars in losses, serves as a stark reminder of the risks faced by businesses in the United States.
Unknown hackers compromised the refrigeration systems in hundreds of supermarkets across France, causing temperatures to rise above 100 degrees Fahrenheit overnight and leading to significant spoilage of perishable goods. John Walsh, senior vice president at the Germany-based software company IGEL, emphasized the implications of such an attack for American businesses. “Think about if we don’t have water for seven days, or if they attack freezers and we don’t have food,” he told Fox News Digital. “That’s a tough situation for people to live through, and it could create a lot of economic and social unrest.”
Walsh, who collaborates with governments and companies that build and deploy critical infrastructure—including major firms like Siemens and Rockwell—underscored the urgent need for enhanced operational security. He noted that many of the refrigeration systems affected in France were outdated legacy models that no longer receive updates. This mirrors a broader issue in the U.S., where much of the critical infrastructure also requires significant upgrades.
<p“A primary obstacle in operational technology environments—whether in food manufacturing, pharmaceuticals, oil, or utilities—is that facilities operate assets that are 15 to 20 years old,” Walsh explained. “These systems are expensive, fragile, and essential to ongoing operations.”
Despite the pressing need for upgrades, decision-makers at these companies often hesitate to take key systems offline for improvements, adhering to a mindset of “if it’s not broken, don’t fix it.” However, as technology becomes increasingly integrated into critical infrastructure, cybersecurity firms are compelled to rethink their strategies.
<p“One of the big things we have to consider is that we’re moving from a thought process of security to resilience,” Walsh stated. As artificial intelligence (AI) continues to enhance the sophistication of cyberattacks, he argued that it is no longer feasible to assume complete security from hackers. Instead, system operators should operate under the assumption that attackers may already be present within their networks.
<p“Security is kind of like, ‘I feel I can trust that things are okay.’ Resilience is where you make the assumption the attacker is present—where, when the attacker is present, you control the blast radius,” Walsh elaborated. He warned that a so-called Trojan horse could already be embedded within America’s electrical grid and other critical systems, poised for activation at any moment.
<p“They’ve demonstrated taking it down, which to some degree is them practicing, honing their skills, and honing their methodologies against real targets while sending a message,” he said.
Policy experts are grappling with how to advise lawmakers, given the extensive connectivity of everyday life to the internet. Amy Kremer, chair of the organization Humans First, expressed her concerns about the internet connectivity of household appliances. “I am shocked that appliances have access to the internet,” she told Fox News Digital. “I understand the convenience, but at the same time, you are going to have potential problems with it.”
Kremer pointed out that vulnerabilities extend beyond appliances to devices such as smart thermostats, which could also be exploited by hackers. “As we learn every single day, it’s capable of more and more. It’s great that we have technology—it’s changed the world and made it a much smaller place where we interact and communicate with each other all the time. But with that also comes vulnerabilities,” she added.
Walsh reiterated that America’s critical infrastructure is indeed susceptible to these types of threats, citing previous incidents, including a coordinated cyberattack on Minnesota’s water systems in 2026. “Think about if you were to try to disrupt the U.S. economy or begin to do terrorism-type activities. What would you do? You’d go after water and wastewater. You’d go after the food supply,” he said, drawing parallels to the recent attack in France.
He emphasized the urgency for citizens, government, and the international community to implement governance measures that compel industries to adopt necessary protections. Walsh also warned that the recent spate of hacks could indicate that hackers are refining their skills in preparation for more audacious attacks. “I do think that what we’re beginning to see is a pattern across the U.S., France, and the UK. We see the adversary—potentially a geopolitical adversary—basically practicing their art and demonstrating their art in different locations,” he cautioned.
As the cybersecurity landscape continues to evolve, the need for vigilance and proactive measures becomes increasingly critical. The lessons learned from incidents abroad may serve as a wake-up call for American businesses and infrastructure operators to bolster their defenses against potential threats.
Fox News Digital reached out to Danfoss for further comment regarding the implications of the cyberattack on their refrigeration systems.
According to Fox News Digital, the stakes for U.S. critical infrastructure have never been higher.